Castillo suffered the injury while getting jammed during an at-bat. He signed a $72.5-million deal in August that runs through 2020.
James Shields takes the mound in Game 1 Tuesday, while rookie Yordano Ventura is slated to pitch Game 3. If the series reaches five games, Shields would likely be in line to start Game 5 Sunday.
An MRI on the injured shoulder of
Wacha has been dealing with a stress reaction in his right shoulder, but he is expected to follow his normal offseason program. "Even the doctors were a little surprised on how that looked," general manager John Mozeliak said.
Panik has hit second in all nine of the Giants' postseason games so far, but he's hit just .239/.271/.348 in 46 at-bats, with three of his 11 hits coming during the Wild Card game to open the postseason. He bat just after leadoff man and center fielder Gregor Blanco. Catcher Buster Posey bats third, followed by third baseman Pablo Sandoval, right fielder Hunter Pence, first baseman Brandon Belt, designated hitter Michael Morse, left fielder Travis Ishikawa and shortstop Brandon Crawford.
Escobar led off just 16 times while playing all 162 games during the regular season, but he's been the man atop the lineup in each of the Royals' first eight postseason games -- all wins. He'll be followed by right fielder Norichika Aoki, center fielder Lorenzo Cain, first baseman Eric Hosmer, designated hitter Billy Butler, left fielder Alex Gordon, catcher Salvador Perez, second baseman Omar Infante and third baseman Mike Moustakas.
Williams went 4-2 with a 2.83 ERA, 1.13 WHIP and 38:17 K:BB ratio in 57 1/3 innings over nine starts after joining the team off waivers in August. He has pitched for seven teams while compiling a 4.40 ERA in 891 1/3 career innings.
I think in Choate’s case, for us, he’s fairly one-dimensional," general manager John Mozeliak said. "That makes it difficult for us to use him, particularly during a long season."
Choate posted a 4.50 ERA, 1.11 WHIP and 32:13 K:BB ratio in 36 innings during the regular season. He fared much better against left-handed hitters, who hit .093/.205/.147 in 75 at-bats against the reliever. Righties posted a .938 OPS when facing Choate in 2014.
"Taijuan is completely healthy and was very impressive in his two outings, but made a personal decision that he needed to return home at this time," general manager Jack Zduriencik said in a statement. "He will continue with his offseason program and we look forward to seeing him at spring training in February."
Walker posted a 2.00 ERA in his two AFL starts, striking out 11 and walking two in nine innings of work.
San Francisco Giants 2014 MLB National League Champs
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